Date: Sat, 28 Oct 2006 00:30:11 -0400 From: Mikhail Teterin <mi+kde@aldan.algebra.com> To: Gleb Smirnoff <glebius@freebsd.org> Cc: freebsd-net@freebsd.org, freebsd-stable@freebsd.org, jfvogel@gmail.com Subject: new em-driver still broken (was: Re: em network issues) Message-ID: <200610280030.12319@aldan> In-Reply-To: <20061021173358.GC75694@cell.sick.ru> References: <200610211300.09476@aldan> <20061021173358.GC75694@cell.sick.ru>
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On Saturday 21 October 2006 13:33, Gleb Smirnoff wrote:
= We aren't currently speaking about performance, we need to know whether
= kernel with DEVICE_POLLING option makes NIC work stable.
Having noticed today's em-driver update, I rebuilt world/kernel and tried the
dump-test again.
The kernel had the DEVICE_POLLING option in it, but polling was not, actually,
enabled on em0.
With three simultanious dumps arriving, the system-component of the load was
40-50%:
2 users Load 2.64 0.98 0.41 28 ΦΟΧ 00:13
Mem:KB REAL VIRTUAL VN PAGER SWAP PAGER
Tot Share Tot Share Free in out in out
Act 109936 30080 196064 42464 1642672 count
All 366172 32684 1413555k 48140 pages
Interrupts
Proc:r p d s w Csw Trp Sys Int Sof Flt cow 6720 total
3 55 9736 151241k19989 47 232248 wire irq1: atkb
79108 act irq6: fdc0
35.8%Sys 4.5%Intr 59.7%User 0.0%Nice 0.0%Idl 60372 inact irq15: ata
| | | | | | | | | | 276 cache irq17: fwo
==================++>>>>>>>>>>>>>>>>>>>>>>>>>>>> 1642396 free irq20: nve
daefr irq21: ohc
Namei Name-cache Dir-cache prcfr irq22: ehc
Calls hits % hits % react 2710 irq25: em0
229 229 100 pdwak 24 irq29: amr
zfod pdpgs 1993 cpu0: time
Disks ad4 ad6 amrd0 ozfod intrn 1993 cpu1: time
KB/t 0.00 0.00 128 %slo-z 221184 buf
tps 0 0 12 4 tfree 22 dirtybuf
MB/s 0.00 0.00 1.49 100000 desiredvnodes
% busy 0 0 30 2409 numvnodes
It was working...
Then I entered the following shell command:
% (ifconfig em0 polling; sleep 179; ifconfig em0 -polling) &
Hoping, that, even if polling causes problems, three minutes later it will
turn back off automatically.
Unfortunately, the machine dropped off the network immediately and is not
coming back. I'll get to its console on Monday, but something is still very
wrong with the em-driver :-(
-mi
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